Chester Roman ampitheatre
The largest Roman ampitheatre in the UK, Chester was built in the late first century AD, and was probably used both for entertainments and for practising troop manoeuvres and weapon training. Only about two-fifths of the oval amphitheatre is visible; the rest lies unexcavated behind the brick wall. In the excavated part, two entrances have been exposed: the larger lies on the long axis to the north, while the smaller lies on the short axis to the east. Lining the arena is the original stone wall, although, owing to later removal, some sections are missing and there is modern concrete backing. Free admission.